Section-tempering furnace.



'PATENTED JAN. 6, 1903.

G. W. PACKER- SEGT ION TEMPBRING FURNACE.

APPLICATION PIL'BD JULY 3- 1902.

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No. 717,906. PATENTED JAN. e, 1903.

G. w PAcKBR. SEGTION TEMPERING FURNACE.

APPLIUA'H OH FILED JULY 3, 1902.

Nrrn TATE PATENT OFFICE.

GEORGE W. PACKER, OF CHICAGO, ILLINOIS, ASSIGNOR TO DEERING HARVESTER COMPANY, OF CHICAGO, ILLINOIS.

SECTlON-TEM PERIN G FURNACE.

SPECIFICATION forming part of Letters Patent No. 717,906, dated January 6, 1903.

i 7 Application filed July 3; 1902. Serial No. 114,200- (No modelfl To all whom it may concern:

Be it known that r, GEORGE W. PACKER, of

Furnace, of which the following is a specifi-' cation, reference being had to the accompanying drawings.

My invention relates to a feeding attach ment for a section-tempering furnace, and has for its object the automatic positive feeding of sections to such a furnace.

Figure l is a side elevation of a temperingfurnace provided with my improvement. Fig. 2 is a side elevation, partially in section, of a portion of the same. Fig. 3 is a fragmentary end elevation of the machine, showing carrying-chain removed. Figs. 4: and 5 are details of parts.

Ais the frame of the machine, supported on the legs a. The frame A may be of any suitable shape and construction, but preferably rectangular and constructed as shown .in Fig. 1. Gas-burners b, leading from the supplypipe B, are located along the side of the frame The burners b are shown in dotted lines. Secured to the shafts d and d, which are journaled in suitable bearings secured tothe ends of the machine, are the wheels 0 and 0,

over which passes the carrier-chain C. On the shaft d,concentric with the wheel c and rigidly secured to said shaft, is the drivingsprocket D, which receives motion through the sprocket-chain e, in connection with the outside source ofpower. On the circumference of the wheel 0 are spurs or projections 0 which engage with corresponding recesses in the links of the chain C, thus insuring a ward end of the machine, preferably on the brackets which support the bearings for the shaft d, is the'frame F of the automatic feeding device. The frame F may be regarded as two vertical parallel standards bolted at their base to the above-mentioned brackets, connected laterally with a web and terminating above in the half-boxes f j, which, with the caps f f form the bearings for the crankshaft G. Conjointly with the gibs h h the standards of the frame F also form ways or grooves in which reciprocates the feeder-plate H, actuated by the crank-shaft G, through the crank g and connecting-rod g. The web connecting the two standards recedes from a central plane above, Fig. 2, sufficiently to accommodate the movements of the crank g, connecting-rod g, and feeder-plate H, and a portion of its lower part forms a Vertical stop F, against which rest the sections being fed to the machine. The working face of the portion F of the web is in alinement with the rear face of the feeder-plate H. On the crank-shaft G is also a spring-actuated friction-clutch I, the portion t' being fixed on the shaft and the part t" loose. Concentric with the shaft and clutch and as one piece with the loose portion of the clutch z" is the sprocketwheel J, to which motion is imparted from some outside source ofpower through means of the sprocket-chain j. In the bearingk of the brace K is journaled and supported the overhanging end of the crank-shaft G.

L is an arm pivoted on the studs Z Z, which are secured to the standards of the frame F. The armL is so constructed that its lateral portion Z will swing free of the deflected web of the frame F andis also provided with a forward extension Z and a rearward extension 1 The forward extension Z abuts against the section-hopper M and forms a foot or rest which supports the section adjacent to the part F. of the frame F. In the rearward extension Z of the arm L is securedawearingplate 1 adapted to engage with the ends of the links in the chain C. The spring N, secured to the frame F, with its free end hearing against the extension Z of the armL, will restore the arm L to the position shown in Fig.2 after said arm has been deflected by the links of the chain C.

The hopper M is bolted to the frame F at such an angle as will secure gravity feed of sections to the feeding mechanism and also to bring the rivet-holes of each section far enough out of alinement with the holes of the adjacent sections as to effectually prevent the fins or burs around them engaging with the rivet-holes of the adjoining sections. To further insure the sections sliding down the hopper, a weight W is placed above them. The links of the chain 0 are not claimed as part of this invention. Therefore suffice it to say that they are special forms of sprocket-chain adapted to receive knife-sections, retain them while passing through the furnace, and deposit them at the delivery end into a coolingvat. The fact that the section-receiving portion of the chain-link is essentially all on the outside of the pitch -line of said link will cause them to spread or diverge at their outer ends when passing over a pulley, and hence, as. the spreading of the links is a necessary feature in order to insert the sections, the feeding device is located where the chain 0 passes over the pulley 0. These links, in fact, form jaws which close upon the sections.

The operation of the machine is as follows: Having thrown in engagement the clutch or other means of connecting the machine to the source of power, the sprocket-wheel D'will impart continuous rotation to the shaft d and to the wheel 0, which will in turn drive the chain C in the direction indicated by arrows, Fig. l. The sprocket-wheel J will also be driven and may be in the same direction. As long as there is no resistance interposed, the sprocket-wheel J will impart continuous rotation to the crank-shaft G, on which it sleeves; but when the feeding-plate H comes in contact with a knife-section and the forward extension Z of the arm L arrests the downward movement of said section, as shown in Fig. 2, then the spring-actuated friction-clutch will permit uninterrupted motion of the sprocketwheel J, while the crank-shaft G will remain stationary until the resistant knife-section is released. The foot or forward extension Z of the arm L is withdrawn from the position in which it supports the section by the forwardprojecting portion of the link engaging with the wearing-plate Z on the rearward extension Z of the said arm L and swinging it against the yielding action of the spring N far enough to allow the feeder-plate to push the section into the opening between the links in chain 0. At a predetermined point the wearing-plate Z of said arm L will disengage from said link of the chain (3 and the spring N will return it to its original position. The feeder-plate H willin the meantime have traveled far enough in its return stroke to avoid interference with the return to normal position of the foot Z and other parts of the arm L and will continue in its reciprocating motion until resistance is again encountered. When sections are in the hopper, this resistance occurs as soon as the feeder-plate is raised to a point sufficiently high to permit the adjacent section to slide into position directly beneath the said feeder-plate, which will in its returning downstroke engage with said section and submit it to a downward stress, the intensity of which is dependent on the adjustment of the spring-actuated friction-clutch I. This stress and each successive stress will be relieved when the next link and each successive link engages the arm L and removes the supporting-foot Z as above described. In this way a section is placed automatically and positively between successive links of the chain 0, which slowly passes them through a hot furnace and discharges them, as before described.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In combination with a section-tempering furnace, a hopper, said hopper adapted to sustain flat against each other a series of sections provided with rivet-holes, the said sections being sustained by said hopper in such positions relative to each other that the rivet-holes therein will not register, and automatic means for moving said sections from the hopper to said tempering-furnace, substantially as described.

2. In combination with a section-tempering furnace, an inclined hopper, said hopper adapted to receive the sections standing upon their edges with their planes at an acute angle relative to the bottom of said hopper, and automatic means for sliding each succeeding section presented to the said furnace in an edgewise direction from the said hopper, substantially as described.

3. In combination with a section-tempering furnace, an inclined hopper, said hopper adapted to receive the sections standing upon their edges with their planes at an acute angle relative to the bottom of said hopper, an automatically-moved follower, and automatic means for sliding each succeeding section from said hopper to the said tempering-fur nace, substantially as described.

4. In combination with a section-temper ing furnace, a hopper, said hopper adapted to receive the sections standing upon their edges but inclined relative to the bottom of the hopper, an automatically-moved stop having its normal position beneath the section to be next moved to the furnace, and automatic means for moving said stop, and also automatic means for moving the said section edgewise from the said hopper after the said stop is moved, substantially as described.

5. In combination with a section-tempering furnace, a hopper, said hopper adapted to sustain the sections standing upon their edges but inclined relative to the bottom of the hopper, an automatically-actuated follower for moving the said sections in said hopper, an automatically-moved stop having its normal position beneath the section to be fed, automatic means for moving said stop, and also automatic means for moving the said section edgewise from the said hopper, substantially as described.

6. In a section-tempering furnace, a heating-chamber, an endless chain traveling therethrough, said endless chain havingja'ws, automatic means for opening the said jaws at the receiving and delivery end of the said chain, a hopper and an automatic device adapted to slide the sections edgewise between said open jaws, substantially as described.

7. In combination with a section-tempering furnace provided with an endless chain adapted to receive knife-sections, a section-feeding device mounted on the receiving end thereof and consisting of a hopper and automatic means actuated by links of said endless chain for releasing knife-sections, and means for pushing said knife-sections when so released into place on said carrier-chain, s ubstantially as described.

8. In combination with asection-tempering furnace provided with an endless chain adapted to receive knife-sections, a section-feeding device mounted on the receiving end thereof, consisting of a hopper, means actuated by each consecutive link of said chain for releasing knife-sections from the hopper, and independently-operated means for pushing said knife-sections when so released into place between the consecutive jaws of the said carrierchain, substantially as described.

9. In combination with a section-tempering furnace provided with an endless chain adapted to receive knife-sections, a section-feeding device mounted on the receiving end thereof, consisting of a hopper, an oscillating arm, means whereby said arm is actuated by links of said endless chain, a forward extension or foot on said arm, and a spring for returning the arm to its normal position, substantially as described.

10. In combination with asection-tempering furnace provided with an endless chain adapted to receive knife-sections, a section-feeding device mounted on the receiving end thereof, consisting of a hopper, an oscillating arm,

means whereby the said arm is actuated by links of said endless chain, a forward extension or foot on said arm, a spring for returning the arm to its normal position,'and means for pushing the knife-sections from the hopper into place on said endless chain, substantially as described.

11. In combination with a section-tempering furnace provided with an endless chain adapted to receive knife-sections, a section-feeding device mounted on the receiving end thereof, consisting of a hopper, means actuated by each consecutive link of said chain for releasing knife-sections from said hopper, a crankshaft journaled in said section -feeding device, a spring-actuated friction-clutch secured to said-crank-shaft, and a sprocket- Wheel secured to the loose portion of the clutch, a feeding plate, reciprocating in grooves in said section-feeding device, and suitable connections between said crank-shaft and feeder-plate, substantially as described.

GEORGE WV. PAOKER.

In presence of H. L. SHELDEN, J. M. BIOKFORD. 

